One-pot homopolymerization of thiophene-fused isoindigo for ambient-stable ambipolar organic field-effect transistors

doi:10.1039/c7ra01139c

	One-pot homopolymerization of thiophene-fused isoindigo for ambient-stable ambipolar organic field-effect transistors
	Zhang, Huanrui 1; Zhao, Zhiyuan 2,3; Zhao, Na1 ; Xie, Yu1 ; Cai, Mian 1,4; Wang, Xiao1 ; Liu, Yunqi 2; Lan, Zhenggang 1; Wan, Xiaobo 1,4
	2017
发表期刊	RSC ADVANCES
卷号	7 期号:40 页码:25009-25018
摘要	Donor-acceptor (D-A) type conjugated polymers have been extensively studied for organic field-effect transistors (OFETs), while the homopolymers of acceptors were much less investigated. However, conjugated homopolymers are structurally simpler, so their solid-phase behavior such as packing pattern, long-range order and crystallinity are more predictable, so are their charge-transport properties. Here we report the synthesis of the homopolymer of thiophene-fused isoindigo (TII), which was directly obtained using a "one-pot" polymerization method either via Suzuki condensation polymerization (denoted as PTII-1) or Stille condensation polymerization (denoted as PTII-2), respectively. To further elucidate the structure-property relationship of the PTII, TII was also copolymerized with II to give P(TII-co-II) for comparison. Encouragingly, solution-processed OFETs based on PTII-2 exhibited ambipolar transport behavior with balanced hole and electron mobilities (0.065 and 0.15 cm(2) V-1 s(-1), respectively) after annealing, which is two orders higher than that of P(TII-co-II). 2D grazing incidence X-ray diffraction (2D-GIXRD) analysis explicitly showed that PTII films have much better well-ordered structure and crystallinity than P(TII-co-II), which accounted for their better OFET performance. To the best of our knowledge, PTII-2 is among the best homopolymers of A units with high ambipolar charge-carrier mobility, indicating that the design of such homopolymers might be an important strategy toward high performance polymer OFETs. In addition, the "one-pot" homopolymerization of dibromo-monomers via Suzuki or Stille condensation also provides a more convenient way to construct conjugated homopolymers, which deserves a closer study.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c7ra01139c
关键词[WOS]	DONOR-ACCEPTOR POLYMERS ; THIN-FILM TRANSISTORS ; CONJUGATED POLYMERS ; HIGH-MOBILITY ; N-TYPE ; CHARGE-TRANSPORT ; ELECTRON ; SEMICONDUCTORS ; SENSORS ; IMIDE
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
项目资助者	"100 Talents" Program from Chinese Academy of Sciences and National Natural Science Foundation of China(NSFC51573204 ; 21402220)
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000401525700056
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9704
专题	生物基及仿生高分子材料团队（过去）
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, 189 Songling Rd, Qingdao 266101, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 3.Northeast Normal Univ, Changchun 130024, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Huanrui,Zhao, Zhiyuan,Zhao, Na,et al. One-pot homopolymerization of thiophene-fused isoindigo for ambient-stable ambipolar organic field-effect transistors[J]. RSC ADVANCES,2017,7(40):25009-25018.
APA	Zhang, Huanrui.,Zhao, Zhiyuan.,Zhao, Na.,Xie, Yu.,Cai, Mian.,...&Wan, Xiaobo.(2017).One-pot homopolymerization of thiophene-fused isoindigo for ambient-stable ambipolar organic field-effect transistors.RSC ADVANCES,7(40),25009-25018.
MLA	Zhang, Huanrui,et al."One-pot homopolymerization of thiophene-fused isoindigo for ambient-stable ambipolar organic field-effect transistors".RSC ADVANCES 7.40(2017):25009-25018.